3623181 has 4 divisors (see below), whose sum is σ = 4830912. Its totient is φ = 2415452.

The previous prime is 3623171. The next prime is 3623197. The reversal of 3623181 is 1813263.

3623181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3623181 - 2⁶ = 3623117 is a prime.

It is a super-3 number, since 3×3623181³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a D-number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3623171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603861 + ... + 603866.

It is an arithmetic number, because the mean of its divisors is an integer number (1207728).

Almost surely, 2^3623181 is an apocalyptic number.

It is an amenable number.

3623181 is a deficient number, since it is larger than the sum of its proper divisors (1207731).

3623181 is a wasteful number, since it uses less digits than its factorization.

3623181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207730.

The product of its digits is 864, while the sum is 24.

The square root of 3623181 is about 1903.4655237225. The cubic root of 3623181 is about 153.5901425287.

The spelling of 3623181 in words is "three million, six hundred twenty-three thousand, one hundred eighty-one".